ListPlot[{1.11,2.1,3,4}]
ListPlot[{{1,2},{3,4}}]
ListPlot[{{{0,0},{0,1},{1,2},{3,4}},{{100,0},{0,1},{1,2},{3,4}}}]
ListPlot[{{{0,0},{1,1},{3,2},{5,4}},{{5,0},{0,1},{1,2},{3,4}}},Options[FillToAxes->{0},Joined->{True,False}]]